12 volt question?

Submitted: Wednesday, Feb 27, 2008 at 03:44
ThreadID: 54967 Views:2256 Replies:8 FollowUps:17
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What the heck is it with 12 V questions? despite the fact it relies on some really basic princables they always end in arguments
- if the battery doesnt have enough charge to start then its flat
- if it has no charge its dead flat
- If you take out more power over a given time than it needs to
start it will go flat
- if you charge it at a greater rate than it is discharging it will not go flat
- if you discharge it over a given time less than it needs to start it will not go flat
- the more power you take out of it the quicker it will go flat
- shops are full of batteries coz they dont last forever
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Reply By: Krakka - Wednesday, Feb 27, 2008 at 05:06

Wednesday, Feb 27, 2008 at 05:06
If we were all as smart as you, we wouldn't need a forum like this. Not everybody is an expert on everything. I'm sure you have asked a question that somebody else thought was pretty simple.
Have a good day, Krakka
AnswerID: 289596

Follow Up By: Member - Davoe (Yalgoo) - Wednesday, Feb 27, 2008 at 05:34

Wednesday, Feb 27, 2008 at 05:34
you missed the tongue in Cheek
- follow a few 12 V threads on this and other forums and you always end up with a big crap fight with people trying to overcomplicate the (basically) simple issue
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Follow Up By: Mainey (wa) - Wednesday, Feb 27, 2008 at 09:10

Wednesday, Feb 27, 2008 at 09:10
........too much technical information :-))

Mainey . . .
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Follow Up By: Krakka - Wednesday, Feb 27, 2008 at 19:31

Wednesday, Feb 27, 2008 at 19:31
Yeah, didn't see the tongue. But if the post heading doesn't interest me i don't read it.
Cheers Krakka
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Follow Up By: Nomadic Navara - Thursday, Feb 28, 2008 at 00:25

Thursday, Feb 28, 2008 at 00:25
Yes - too much technical information. That is because some people do not listen to those who have been in the industry and have studied the subject deeply. We then have to try to explain why things happen and you people will not accept simple explanations.

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Follow Up By: Member - Davoe (Yalgoo) - Thursday, Feb 28, 2008 at 12:44

Thursday, Feb 28, 2008 at 12:44
The technical info is completly irrelavant as per my post
If your battery went flat you were either drawng to much out of it to start the vehicle or the bttery was stuffed
both eventualitys are covered in the A-Z
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FollowupID: 555139

Reply By: Member - Doug T (FNQ) - Wednesday, Feb 27, 2008 at 05:15

Wednesday, Feb 27, 2008 at 05:15
Davoe
Maybe that's the problem with your bloody phone ................your discharging it at a faster rate than the charger can keep up,


Feb 27, 2008 at 02:44 ????? sleep problems or what,and don't look at my time either, I have a logical explanation why I'm up 4:14am,

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Follow Up By: Member - Davoe (Yalgoo) - Wednesday, Feb 27, 2008 at 05:36

Wednesday, Feb 27, 2008 at 05:36
Night shift but I fly out this morning and after midnight my croshift takes over i cant go back to my room because my B2B is in on DS
so nothing better to do than try and stir up a 12 volt fight - Nothing is easier
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Follow Up By: Member - Doug T (FNQ) - Wednesday, Feb 27, 2008 at 06:03

Wednesday, Feb 27, 2008 at 06:03
Won't go into details why I'm up but have a safe 12v flight.

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Follow Up By: Member - Tony W (VIC) - Wednesday, Feb 27, 2008 at 07:14

Wednesday, Feb 27, 2008 at 07:14
OK, I'll bite.

What do you mean by "flat"?

0v? 8v? 9v? 11v?

or maybe 0% charged, 40% charged, or 50% charged?

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Follow Up By: Member - Davoe (Yalgoo) - Wednesday, Feb 27, 2008 at 07:24

Wednesday, Feb 27, 2008 at 07:24
Its all there in my 12 V A-Z
if its flat it wont start your 4by - how many volts its got is irrelevent
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Follow Up By: Member - Tony W (VIC) - Wednesday, Feb 27, 2008 at 07:34

Wednesday, Feb 27, 2008 at 07:34
In that case your A-Z is wrong.
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Follow Up By: Member - Davoe (Yalgoo) - Wednesday, Feb 27, 2008 at 07:35

Wednesday, Feb 27, 2008 at 07:35
Nope definitly not Ive had heeeeps of flat batterys and not one has started the engine
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Follow Up By: Member - Oldplodder (QLD) - Wednesday, Feb 27, 2008 at 08:30

Wednesday, Feb 27, 2008 at 08:30
OK, can I have a go too :o0

Lets see.

I have had flat batteries in a car with an alternator where I have push started the car, and I have had flat batteries in the same car where it won't even push start. Something about not even enough voltage at the alternator to generate a field so the alternator will out put a charge to keep the coil going for the ignition system?
So the first time the battery was flat, where as the 2nd time the battery was dead flat?
Of course warming up the battery to get a bit more voltage won't work either?

Now with the old beetle with a generator, never a problem. But then, the 12v battery really starts it well since it is a 6v system, whereas the 6v battery fully charged in the beetle with a 12v system doesn't do much!

Sorry, just had to have a go.

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FollowupID: 554917

Follow Up By: Member - Davoe (Yalgoo) - Wednesday, Feb 27, 2008 at 23:30

Wednesday, Feb 27, 2008 at 23:30
OP
you got some of it
You had to push start it coz the battery was flat this was a result of taking out more than was replaced to a level wher you had a flat battery.
In scenario 2 you tookm all the charge out and got a dead flat
as for the VW this is precsily the issue im talking about
V dub starts= no worries
V dub doesnt start = flat battery
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FollowupID: 555082

Reply By: Member - Doug T (FNQ) - Wednesday, Feb 27, 2008 at 07:54

Wednesday, Feb 27, 2008 at 07:54
Davoe
What you need is one of those things protruding from the front of this car.

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Follow Up By: Rock Ape - Wednesday, Feb 27, 2008 at 08:52

Wednesday, Feb 27, 2008 at 08:52
Na! don't want one of them, when they kick back it hurts.
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FollowupID: 554920

Follow Up By: Member - kevin Y (SA) - Wednesday, Feb 27, 2008 at 09:12

Wednesday, Feb 27, 2008 at 09:12
love this one -----my first car a 1927 morris cowley was magneto ignition --at least i didn't have a battery problem with starting when the battery was flat ---but i broke a thumb when it backfired when i was cranking once
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FollowupID: 554923

Reply By: Rod W - Wednesday, Feb 27, 2008 at 12:43

Wednesday, Feb 27, 2008 at 12:43
Hey Davoe, ya wana know some other things that will get em going... tyres, fridges, towbar/towball ratings brings out all the technical gobbledegook in the world.
AnswerID: 289635

Reply By: Dunaruna - Wednesday, Feb 27, 2008 at 17:18

Wednesday, Feb 27, 2008 at 17:18
The question should be - is there such a thing as a 12v popcorn machine?
AnswerID: 289666

Reply By: farcall - Wednesday, Feb 27, 2008 at 19:25

Wednesday, Feb 27, 2008 at 19:25
Love it Daveo,
Your spot on.
Trev.
AnswerID: 289687

Reply By: Member - Roger B (VIC) - Wednesday, Feb 27, 2008 at 21:32

Wednesday, Feb 27, 2008 at 21:32
I got a bloke in ( a bit of an oracle ) once at Palm Cove C/Pk. Told him I was going in my van to watch my new Gas Television !!!!!!!!
AnswerID: 289721

Follow Up By: Member - Lionel A (WA) - Thursday, Feb 28, 2008 at 08:52

Thursday, Feb 28, 2008 at 08:52
Well...............what was the picture like.
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FollowupID: 555110

Follow Up By: Mainey (wa) - Thursday, Feb 28, 2008 at 12:29

Thursday, Feb 28, 2008 at 12:29
Lionel,
it probably was 'normal' tv, not LCD or PLASMA screen :-)

Mainey . . .
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FollowupID: 555135

Reply By: Member - bushfix - Thursday, Feb 28, 2008 at 09:08

Thursday, Feb 28, 2008 at 09:08
Davoe, good on you.

May your Beer NEVER be flat.
AnswerID: 289771

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